I Have Had Many MRI Have Seen Ms Neurologist, He

I have had many MRI have seen ms neurologist, he ruled that out, I have a prison that grew a little and they found a smaller one , I went to oncology he said not to worry, I have a constant pressure not headache deep pressure top, side left of my head 24/7 sometimes it's very bad. I see white flickering white light, inm dizzy, I'm very depressed, fatigued, my body aches I need help , can't go on like this